Northerner used the term slave power to criticize white southerners who practiced obsessive political power.
Economic push factors of immigration include poverty, overpopulation, and lack of jobs. These conditions were widespread in Europe during the 1800's.
For Congress to declare independence, a majority of delegations would need authorization to vote for independence, and at least one colonial government would need to specifically instruct (or grant permission for) its delegation to propose a declaration of independence in Congress.
